SB2 - God, there's so much wrong with that game. Bought it, binned it, went back to SB1.

Music was crap. Graphics were made larger with no thought to the impact on gameplay. The overall tone was more cartoony. Because of vastly reduced visual field, tactical play became almost impossible compared to the sublime SB1.

And for SB2 they added "enhancements" such as TE mentioned, which can only be described as gimmicks.